Plant pathogens are harmful organisms that cause diseases in plants. They can be bacteria, fungi, viruses, or nematodes, and they attack various parts of the plant, such as leaves, stems, and roots. When plants are infected, they may show symptoms like wilting, discoloration, or stunted growth, which can lead to reduced crop yields and economic losses for farmers. Controlling plant pathogens is essential for healthy agriculture. Farmers often use methods like crop rotation, resistant plant varieties, and chemical treatments to manage these diseases. Understanding plant pathogens helps in developing better strategies to protect crops and ensure food security for everyone, including important crops like wheat and corn.